Set the printer info in crash reports using the crash key logging system.

chrome/common/crash_keys.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_CRASH_KEYS_H_
 #define CHROME_COMMON_CRASH_KEYS_H_
 
 #include <set>
 #include <string>
 
 #include "base/debug/crash_logging.h"
 
 namespace crash_keys {
 
 // Registers all of the potential crash keys that can be sent to the crash
 // reporting server. Returns the size of the union of all keys.
 size_t RegisterChromeCrashKeys();
 
 // Sets the list of "active" extensions in this process. We overload "active" to
 // mean different things depending on the process type:
 // - browser: all enabled extensions
 // - renderer: the unique set of extension ids from all content scripts
 // - extension: the id of each extension running in this process (there can be
 //   multiple because of process collapsing).
 void SetActiveExtensions(const std::set<std::string>& extensions);
 
+// Sets the printer info. Data should be separated by ';' up to
+// kPrinterInfoCount substrings. Each substring will be truncated if necessary.
+class ScopedPrinterInfo {
+ public:
+  explicit ScopedPrinterInfo(const base::StringPiece& data);
+  ~ScopedPrinterInfo();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedPrinterInfo);
+};
+
 // Crash Key Name Constants ////////////////////////////////////////////////////
 
 // The product release/distribution channel.
 extern const char kChannel[];
 
 // The URL of the active tab.
 extern const char kActiveURL[];
 
 // Installed extensions. |kExtensionID| should be formatted with an integer,
 // in the range [0, kExtensionIDMaxCount).
@@ skipping 15 matching lines @@
 extern const char kGPUDriverVersion[];
 extern const char kGPUPixelShaderVersion[];
 extern const char kGPUVertexShaderVersion[];
 #if defined(OS_LINUX)
 extern const char kGPUVendor[];
 extern const char kGPURenderer[];
 #elif defined(OS_MACOSX)
 extern const char kGPUGLVersion[];
 #endif
 
+// The user's printers, up to kPrinterInfoCount. Should be set with
+// ScopedPrinterInfo.
+const size_t kPrinterInfoCount = 4;
+extern const char kPrinterInfo[];
+
 #if defined(OS_MACOSX)
 namespace mac {
 
 // Used to report the first Cocoa/Mac NSException and its backtrace.
 extern const char kFirstNSException[];
 extern const char kFirstNSExceptionTrace[];
 
 // Used to report the last Cocoa/Mac NSException and its backtrace.
 extern const char kLastNSException[];
 extern const char kLastNSExceptionTrace[];
@@ skipping 13 matching lines @@
 
 // Backtrace of a Thread's dtor for <http://crbug.com/274705>.
 extern const char kPasswordThreadDtorTrace[];
 
 }  // namespace mac
 #endif
 
 }  // namespace crash_keys
 
 #endif  // CHROME_COMMON_CRASH_KEYS_H_